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Author Topic: TopRuslan  (Read 49991 times)

maxolous

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Re: TopRuslan
« Reply #120 on: March 30, 2023, 07:57:43 AM »
I appreciate your willingness to help us out and I have to ask:

In terms of impedance, please explain why I would be interested in
the following adjustments:
Dog-one, everything is timely. You will need a controlled tesla to achieve this. Mind you , you are combining waveforms and you must match them in a timely manner.

Maxolous

AlienGrey

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Re: TopRuslan
« Reply #121 on: March 30, 2023, 02:44:37 PM »
Found this posted over on OUR https://www.overunityresearch.com/index.php?topic=4216.msg97076#msg97076
it might be of interest if your into experimenting.

AlienGrey

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Re: TopRuslan
« Reply #122 on: March 30, 2023, 02:50:44 PM »
oops lost link to dog's question on last page about how too ?
I think I would want to know how I can phase lock a device to a tl494 input and not the other way round (sampling it's outputs). A CD4046 and dividers can be a pain in the arse Re Igorik device on OUR.

https://www.overunityresearch.com/index.php?topic=4219.msg104508;topicseen#msg104508

Sil

apecore

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Re: TopRuslan
« Reply #123 on: March 30, 2023, 05:19:34 PM »
Found this posted over on OUR https://www.overunityresearch.com/index.php?topic=4216.msg97076#msg97076
it might be of interest if your into experimenting.

Very intersting,  thanks

Dog-One

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Re: TopRuslan
« Reply #124 on: March 30, 2023, 09:31:14 PM »
I think I would want to know how I can phase lock a device to a tl494 input and not the other way round (sampling it's outputs). A CD4046 and dividers can be a pain in the arse Re Igorik device on OUR.


I've used the CD74HCT4046 many times.  It's a nice little chip,
but like anything else, it has some tuning required to get it to
track a source signal and if you tune it too tight, it will jump
out of lock and go off scanning for anything else.

In the case of this device, we can use this PLL as a multiplier.
Apecore suggests going after an odd subharmonic, so it is
quite doable to take the grenade resonant frequency and
produce a Tesla frequency.

We can also go the other way around and use the PLL to lock
to the Tesla frequency, divide by an odd subharmonic and drive
the push-pull with that.  It all really depends on which frequency
is the more critical one.


apecore

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Re: TopRuslan
« Reply #126 on: March 31, 2023, 01:15:53 AM »

I think I would want to know how I can phase lock a device to a tl494 input and not the other way round (sampling it's outputs). A CD4046 and dividers can be a pain in the arse Re Igorik device on OUR.


So what exactly are you looking for?
I'm running PLL with actif 2nd order lowpass filter.
Going directly to kacher primairy mosfet.
Stil busy optimalisation in order to get a bandwidth of +/- 100khz within offset frequency.

According Ruslan as stated in 2016 (see previous link) inductor frequency can be any integer from grenade/ kacher frequency.
With fine tuning in 10th of kiloherz to determine dancing sinewaves at approx Fres grenade.
So that means no fixed frequency divider for Pushpull.
In other words for stability PLL is needed for inductor loop also.

Or  maybe i m wrong... he pulses inductor ttough yoke  with square pulses.. so no seriescap?
When i do puls inductor with spprox 40khz I get 2kV spikes on inductor.
Which are 600ns width.... this is wider as a half wave from kacher..(250ns)

Problem is when I translate the text it is not a consistent story.
If smebody has a better explanation about wich coil does what and how he tunes inductor coil?
That would be welvome
« Last Edit: March 31, 2023, 10:05:25 AM by apecore »

AlienGrey

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Re: TopRuslan
« Reply #127 on: March 31, 2023, 01:19:24 AM »
Have you got a scope shot of your katcher drive wave form showing a wave form shot and the active
section of push pull section as well.   It should full of bemf pulses i would expect. Is it?

Sil

apecore

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Re: TopRuslan
« Reply #128 on: March 31, 2023, 04:53:59 PM »

I've used the CD74HCT4046 many times.  It's a nice little chip,
but like anything else, it has some tuning required to get it to
track a source signal and if you tune it too tight, it will jump
out of lock and go off scanning for anything else.

My experience with the 4046 is that your input signal must be stable.
In my opinion lock range for kacher should be max +-100khz.

[quote author=Dog-One link=topic=19422.msg575959#msg575959 date=1680204674
In the case of this device, we can use this PLL as a multiplier.
Apecore suggests going after an odd subharmonic, so it is
quite doable to take the grenade resonant frequency and
produce a Tesla frequency.
[/quote]

This idea is out of scope regarding Ruslan stating "we need to tune outside of the max V region, searching for the wave strarts to dance". ...this is not @ resonance i assume.. or at least in a fixed small value next to it


[/quote]

[quote author=Dog-One link=topic=19422.msg575959#msg575959 date=1680204674
We can also go the other way around and use the PLL to lock
to the Tesla frequency, divide by an odd subharmonic and drive
the push-pull with that.  It all really depends on which frequency
is the more critical one.
[/quote]

Yes we need the kacher to run at grenade resonance, taken in account Ruslan's comment .. this must be done with PLL.

But for Pushpull frequency we need to adjust a sub harmonic at a level of 1khz.( tune by 1/10  of a khz) looking for the wave to dance.(Fpp)
So this will not be a fixed sub harmonic from kacher.
I think and if not please comment, we take a SG3525 sychronise it with the 4046 and let it drive the PP on a fixed frequency.(Fpp)
Open issue for me is ..Push pull is it sinewave or square.
We all tried sinewave... did not work.
Synchronisation both VCO's is essential and easy using SG3525.
Lets try push-pull w/o seriescap.



NickZ

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Re: TopRuslan
« Reply #129 on: March 31, 2023, 04:56:45 PM »
🤝 Apecore:  What you are looking for now, is what all of us here need to know. But, no one does know. And is why we need to get to the bottom of this.
   I followed the directions from Stalker, as I have more faith in his approach.  Vasik offered a lot of information about that, but still neither Itsu myself nor anyone else here has had any success, at all.  Someone who has never built this device, will have no idea about how to go about tuning it. Nor how it really works, and why.   Ruslan has mentioned about the use of a tuning method using a small current transformer to tune the Kacher to the grenade circuits with. T-1000 explained to me how to use it. If interested I can explain it to you, if you don't already know.
    NickZ

apecore

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Re: TopRuslan
« Reply #130 on: March 31, 2023, 05:09:10 PM »
Ruslan has mentioned about the use of a tuning method using a small current transformer to tune the Kacher to the grenade circuits with. T-1000 explained to me how to use it. If interested I can explain it to you, if you don't already know.
    NickZ

I m not aware of the method, please explain.

NickZ

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Re: TopRuslan
« Reply #131 on: March 31, 2023, 05:13:12 PM »
   Ape:
   Also, the pp is driving both the inductor, and also the grenade's output coil, through the yoke.  Inductor frequency is normally around 15 to 18KHz. Output coil runs at the same or close by frequency, in my case. I don't tune for any certain set frequency, as I've had no luck at all with that approach.  Watch Itsu's videos about tuning and set frequencies watch his last couple of videos about this device.
    The pp pulses the yoke core circuits using a square wave, but the inductor and grenade output coil have sine waves as their output. I hope that this is what you were asking about.
   I will explain about the use of the current transformer, later. You might check my last video on this topic, first.

      NickZ

AlienGrey

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Re: TopRuslan
« Reply #132 on: March 31, 2023, 05:32:41 PM »
Have you tried talking to it or pleeding with it to work or just plain praying ?

Ok i give you a hint about the sqr wave vs sine wave if you feed a sqr wave into a coil
winding it will produce a sine wave and its best if it's in resanance 'purity'.

Sil

apecore

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Re: TopRuslan
« Reply #133 on: March 31, 2023, 05:45:40 PM »
   Ape:
   Also, the pp is driving both the inductor, and also the grenade's output coil, through the yoke.  Inductor frequency is normally around 15 to 18KHz. Output coil runs at the same or close by frequency, in my case. I don't tune for any certain set frequency, as I've had no luck at all with that approach.  Watch Itsu's videos about tuning and set frequencies watch his last couple of videos about this device.
    The pp pulses the yoke core circuits using a square wave, but the inductor and grenade output coil have sine waves as their output. I hope that this is what you were asking about.
   I will explain about the use of the current transformer, later. You might check my last video on this topic, first.

      NickZ

Nick,
This what we all did, thats why i bring this up...
No seriescap will give square wave at inductor and no sinewave in grenade also.
Sinewave comes from kacher.

apecore

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Re: TopRuslan
« Reply #134 on: March 31, 2023, 05:48:30 PM »
Have you tried talking to it or pleeding with it to work or just plain praying ?

Ok i give you a hint about the sqr wave vs sine wave if you feed a sqr wave into a coil
winding it will produce a sine wave and its best if it's in resanance 'purity'.

Sil

I m not asking hints, I m comparing methods.
I know sine and square... thats not the point.

Did someone tried Ruslan' s approach?